Hash Generator

Key features

• All four algorithms — SHA-1, SHA-256, SHA-384 and SHA-512 — computed in parallel for the same input.
• Digests refresh live about 200 ms after you stop typing, each with its own copy button.
• Runs on crypto.subtle.digest, so the hashing is the browser's native, audited implementation.
• The UI notes plainly that SHA-1 is shown for legacy compatibility only and recommends SHA-256 or SHA-512 for security work.
• Clear fallback message if Web Crypto is missing (it needs a secure HTTPS or localhost context).

How it works

1. 1

   Enter the text

   Type or paste anything into the input — digests begin updating almost immediately.

2. 2

   Watch all four digests fill in

   Each row (SHA-1, SHA-256, SHA-384, SHA-512) shows the hexadecimal digest of the exact same bytes.

3. 3

   Copy the one you need

   Every row has its own copy button, so grabbing the SHA-256 for a fingerprint field takes one click.

4. 4

   Mind the algorithm choice

   For anything security-sensitive, use the SHA-256 or SHA-512 row; treat SHA-1 output as legacy-only.

Tips for better results

• 💡A tiny change in input — even a trailing space — completely changes every digest; that's the avalanche property working.
• 💡Hashing is case- and whitespace-sensitive: 'hello' and 'hello ' produce different digests.
• 💡Verify a file instead of text? The File Checksum tool applies the same algorithms to files, plus CRC32.
• 💡If the tool reports Web Crypto unavailable, you're probably on plain HTTP — reopen the site over HTTPS.

Frequently asked questions